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Ye S, Matthan NR, Lamon-Fava S, Solano-Aguilar G, Turner JR, Walker ME, Chai Z, Lakshman S, Chen C, Dawson H, Urban JF, Lichtenstein AH. Colon transcriptome is modified by a dietary pattern/atorvastatin interaction in the Ossabaw pig. J Nutr Biochem 2021; 90:108570. [PMID: 33429036 PMCID: PMC8994518 DOI: 10.1016/j.jnutbio.2020.108570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 11/29/2022]
Abstract
Optimizing diet quality in conjunction with statin therapy is currently the most common approach for coronary artery disease (CAD) risk management. Although effects on the cardiovascular system have been extensively investigated, little is known about the effect of these interventions in the colon and subsequent associations with CAD progression. To address this gap, Ossabaw pigs were randomly allocated to receive, for a six-month period, isocaloric amounts of either a heart healthy-type diet (HHD; high in unrefined carbohydrate, unsaturated fat, fiber, supplemented with fish oil, and low in cholesterol) or a Western-type diet (WD; high in refined carbohydrate, saturated fat and cholesterol, and low in fiber), without or with atorvastatin therapy. At the end of the intervention period, colon samples were harvested, mucosa fraction isolated, and RNA sequenced. Gene differential expression and enrichment analyses indicated that dietary patterns and atorvastatin therapy differentially altered gene expression, with diet-statin interactions. Atorvastatin had a more profound effect on differential gene expression than diet. In pigs not receiving atorvastatin, the WD upregulated “LXR/RXR Activation” pathway compared to pigs fed the HHD. Enrichment analysis indicated that atorvastatin therapy lowered inflammatory status in the HHD-fed pigs, whereas it induced a colitis-like gene expression phenotype in the WD-fed pigs. No significant association was identified between gene expression phenotypes and severity of atherosclerotic lesions in the left anterior descending-left circumflex bifurcation artery. These data suggested diet quality modulated the response to atorvastatin therapy in colonic mucosa, and these effects were unrelated to atherosclerotic lesion development.
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Affiliation(s)
- Shumao Ye
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA
| | - Nirupa R Matthan
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA
| | - Stefania Lamon-Fava
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA
| | - Gloria Solano-Aguilar
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, Maryland, USA
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Woman's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Maura E Walker
- Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Zhi Chai
- Intercollege Graduate Degree Program in Physiology and Department of Nutritional Science, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Sukla Lakshman
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, Maryland, USA
| | - Celine Chen
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, Maryland, USA
| | - Harry Dawson
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, Maryland, USA
| | - Joseph F Urban
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, Maryland, USA
| | - Alice H Lichtenstein
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA.
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